In the dystopian sci-fi short film AIR, catastrophic atmospheric changes have devastated the planet.

The remnants of humanity seek refuge in Securos, an underground complex its builders promise will be indefinitely sustainable.

Unfortunately, after 126 years, the populace of Securos find themselves dealing with a critical depletion of their oxygen supply. In a random "lottery," denizens of the bunker will be chosen to sacrifice themselves in order to reduce the population and slow the depletion of air.

An engineer named Alex (Antonia Thomas) decides to defy the lottery edict. The brave young woman uses her engineering aptitude to seek another solution to her society's dire situation.

Viewers are shown how life in the once plush Securos bunker has deteriorated after serving as humanity's underground ark for over a century.

Society now believes life above is only reserved forGodand those deceased. The bunker is ruled by a religious zealot (David Schofield), whose fanaticism doesn't spare his own son, Nick (Tom Riley).